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- Crescograph
- Lactometer
- Seismograph
- Hydrometer
Sciences MCQs
Which of the following is a gas?
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- Thorium
- Chlorine
- Mercury
- Plutonium
The energy stored in a stretched spring is _____.
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- Heat energy
- kinetic energy
- Elastic potential energy
- Potential energy
A moving ball stops due to the action of _____.
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- Frictional Force
- Electric Force
- Nuclear Force
- Magnetic Force
Energy of a body due to its motion is called _____.
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- Light energy
- Potential energy
- Kinetic energy
- Heat energy
Two parallel wires carrying currents in the same direction attract each other because of
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- Electric forces between them
- Potential difference between them
- Magnetic force between them
- Mutual inductance between them
An electric motor is used to convert _____.
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- Mechanical energy into kinetic
- Electrical energy into mechanical energy
- Higher voltage to lower voltage
- Mechanical energy into electrical
When the door of an operating refrigerator is opened the temperature of the room will _____.
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- Fall down immediately
- Increase
- Decrease
- Remain unchanged
On earth a moving body ordinarily comes to rest by itself because of the _____.
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- Gravity
- Law of inertia
- Forces of friction
- Conservation of momentum
Air is completely removed from an electric bulb to prevent _____.
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- Bursting of the bulb
- Loss of light due to absorption
- Oxidation of tungsten filament
- None of them